Sentence examples for substance diffusion from inspiring English sources

Meanwhile, the unique structure of co-doped TiO2 nanotube arrays promoted the electron transfer and the substance diffusion.

At further increase of the voltammograms number, the responses to interferents decreased, but at the same time, the transducer sensitivity to hydrogen peroxide also decreased, probably because of too thick PPD layer, which impedes the substance diffusion.

In terms of the soluble substance diffusion through obtained gels [11], they are generally classified as (1) "microporous" with a pore size in the range of 10 50 nm and (2) "macroporous"—with pores from 100 to 1000 nm or even bigger.

When released within the CNS, neuropeptides might act as "local hormones" via volume transmission (signal substance diffusion in a three-dimensional fashion within the extracellular space also termed paracrine signaling), or as co-transmitters that act at or nearby synapses.

Gram-negative bacteria possess the outer membrane, in addition to cell wall, as the barrier to restrict the hydrophobic substances diffusion into the cell.

He shows how the material basis of literature and the technology of its production affected the substance and diffusion of ideas.

The exchange of substances across the microdialysis membrane is limited by the total area of the membrane, the perfusion flow rate, the characteristics of the diffusing substance and the diffusion constant in the tissue surrounding the probe [ 4, 11].

This creates a dead space around the catheter, in which the only transport of substances is diffusion.

The problem is described by the coupling of an unsteady mass (or heat) transfer phenomenon (or substance release) by diffusion (or conduction) into a body and by transport (or convection) phenomena inside the field where the fluid is flowing; the transport field is given, for example, by a potential solution (see, for example, [55]).

Nevertheless, all substances showed low diffusion rates into medaka embryos.

Ignoring the effects of external forces for a source-free volume and for space-invariant diffusivity constant κ, the concentration of a dispersed substance follows the following diffusion equation [35]: ∂ c ( r, t ) ∂ t = κ ∂ 2 c ( r, t ) ∂ x 2 + ∂ 2 c ( r, t ) ∂ y 2 + ∂ 2 c ( r, t ) ∂ z 2. To solve the above differential equation, appropriate boundary and initial conditions are required.